00001 #ifndef QPID_CLIENT_BOUNDSCHECKING_H 00002 #define QPID_CLIENT_BOUNDSCHECKING_H 00003 /* 00004 * 00005 * Licensed to the Apache Software Foundation (ASF) under one 00006 * or more contributor license agreements. See the NOTICE file 00007 * distributed with this work for additional information 00008 * regarding copyright ownership. The ASF licenses this file 00009 * to you under the Apache License, Version 2.0 (the 00010 * "License"); you may not use this file except in compliance 00011 * with the License. You may obtain a copy of the License at 00012 * 00013 * http://www.apache.org/licenses/LICENSE-2.0 00014 * 00015 * Unless required by applicable law or agreed to in writing, 00016 * software distributed under the License is distributed on an 00017 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 00018 * KIND, either express or implied. See the License for the 00019 * specific language governing permissions and limitations 00020 * under the License. 00021 * 00022 */ 00023 #include "qpid/sys/Monitor.h" 00024 00025 namespace qpid{ 00026 namespace client{ 00027 00028 class Bounds 00029 { 00030 public: 00031 Bounds(size_t maxSize); 00032 bool expand(size_t, bool block); 00033 void reduce(size_t); 00034 size_t getCurrentSize(); 00035 00036 private: 00037 friend std::ostream& operator<<(std::ostream&, const Bounds&); 00038 sys::Monitor lock; 00039 const size_t max; 00040 size_t current; 00041 }; 00042 00043 std::ostream& operator<<(std::ostream&, const Bounds&); 00044 00045 00046 }} 00047 00048 #endif